[Qemu-devel] [PATCH RFC 16/19] qobject: Clean up around qtype_code

[Markus Armbruster <armbru@redhat.com>]

QTYPE_NONE is a sentinel value.  No QObject has this type code.
Document it properly.

Fix dump_qobject() to abort() on QTYPE_NONE, just like for any other
invalid type code.

Fix to_json() to abort() on all invalid type codes, not just
QTYPE_MAX.

Clean up Property member qtype's type: it's a qtype_code.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 block/qapi.c               | 3 ---
 include/hw/qdev-core.h     | 2 +-
 include/qapi/qmp/qobject.h | 2 +-
 qobject/qjson.c            | 3 +--
 4 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/block/qapi.c b/block/qapi.c
index 8a19aed..3802187 100644
--- a/block/qapi.c
+++ b/block/qapi.c
@@ -519,9 +519,6 @@ static void dump_qobject(fprintf_function func_fprintf, void *f,
             QDECREF(value);
             break;
         }
-        case QTYPE_NONE:
-            break;
-        case QTYPE_MAX:
         default:
             abort();
     }
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 4e673f9..9a0ee30 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -226,7 +226,7 @@ struct Property {
     PropertyInfo *info;
     int          offset;
     uint8_t      bitnr;
-    uint8_t      qtype;
+    qtype_code   qtype;
     int64_t      defval;
     int          arrayoffset;
     PropertyInfo *arrayinfo;
diff --git a/include/qapi/qmp/qobject.h b/include/qapi/qmp/qobject.h
index d0bbc7c..0991296 100644
--- a/include/qapi/qmp/qobject.h
+++ b/include/qapi/qmp/qobject.h
@@ -36,7 +36,7 @@
 #include <assert.h>
 
 typedef enum {
-    QTYPE_NONE,
+    QTYPE_NONE,    /* sentinel value, no QObject has this type code */
     QTYPE_QINT,
     QTYPE_QSTRING,
     QTYPE_QDICT,
diff --git a/qobject/qjson.c b/qobject/qjson.c
index 12c576d..f2857c1 100644
--- a/qobject/qjson.c
+++ b/qobject/qjson.c
@@ -260,9 +260,8 @@ static void to_json(const QObject *obj, QString *str, int pretty, int indent)
     }
     case QTYPE_QERROR:
         /* XXX: should QError be emitted? */
-    case QTYPE_NONE:
         break;
-    case QTYPE_MAX:
+    default:
         abort();
     }
 }
-- 
1.9.3